Peak load shaving integrated heating system and method

Abstract

The invention relates to a heat supply system of a thermal power plant, in particular to a peak load shaving integrated heating system and method. The peak load shaving integrated heating system comprises a power generating system and a heat supply network, wherein the power generating system is used for converting heat energy into electric energy and delivering part of residual heat energy to theheat supply network through a pipeline; the heat supply network comprises a circulating pipeline; a heat exchanger, a heat accumulation system, a first-stage user side and a second-stage heat supplysystem are arranged on the circulating pipeline of the heat supply network; the heat supply network exchanges heat with the residual heat energy of the power generating system through the heat exchanger; the heat accumulation system is in parallel connection with a water supply pipeline of the heat supply network and is used for storing heat energy during heat supply valley and releasing heat energy during heat supply peak; the second-stage heat supply system is in parallel connection with the circulating pipeline of the heat supply network; the second-stage user side is arranged on the second-stage heat supply system; and the second-stage heat supply system is used for supplying heat energy in the circulating pipeline of the heat supply network to the second-stage user side. The peak loadshaving integrated heating system solves the problems of peak load shaving, valley filling, and uneven cold and hot at the far and near ends of the heat supply system under the situations that a heating area is increased rapidly, and the heat supply requirement is strong.

Description

technical field [0001] The invention relates to a heat supply system of a thermal power plant, in particular to an integrated heat supply system and method for peak shifting and valley filling. Background technique [0002] In recent years, with the continuous increase of environmental protection policies, the original small and medium-sized boilers that were responsible for large-scale heating in northern my country have been continuously dismantled and transformed. People have higher and higher environmental protection requirements for coal heating and energy supply, and the heating pressure is increasing. protrude. [0003] However, due to the characteristics of my country's coal-rich, oil-poor, and gas-poor energy structure, vast geographical span, and large-scale population, coal-fired heating will still be the main method of heating for a long period of time in the future. Among them, coal-fired heating mainly includes two methods: cogeneration of heat and power and hi...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a peak-shaving and valley-filling integrated heating system and method to solve the problems of peak-shaving and valley-filling of the heating system and uneven heating and cooling at the far and near ends under the situation of rapid increase in heating area and strong heating demand

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